Cod sursa(job #2303217)

Utilizator Vlad3108Tir Vlad Ioan Vlad3108 Data 15 decembrie 2018 20:47:20
Problema Abc2 Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.93 kb
#include <bits/stdc++.h>
using namespace std;
char s[10000005],s2[25];
int len,len2;
unordered_map<unsigned int,int> Ap;
int main(){
    freopen("abc2.in","r",stdin);
    freopen("abc2.out","w",stdout);
    cin>>s;
    len=strlen(s);
    bool ok=0;
    int ans=0;
    unsigned int P=1;
    while(cin>>s2){
        if(ok==0){
            len2=strlen(s2);
            unsigned int cod=0;
            for(int i=1;i<len2;++i)
                P*=3;
            for(int i=0;i<len2;++i)
                cod=cod*3+(s[i]-'a');
            for(int i=0;i<len-len2+1;++i){
                ++Ap[cod];
                cod=(cod-P*(s[i]-'a'))*3+(s[i+len2]-'a');
            }
        }
        unsigned int cod=0;
        for(int i=0;i<len2;++i)
            cod=cod*3+(s2[i]-'a');
        if(Ap.find(cod)!=Ap.end()){
            ans+=Ap[cod];
            Ap.erase(cod);
        }
        ok=1;
    }
    cout<<ans<<"\n";
	return 0;
}